Nautilus: History, Facts, Size, Habitat, Classification & Much More

By Morgan Gutierrez

Nautilus: History, Facts, Size, Habitat, Classification

In the vast and diverse world of animals, the nautilus stands out as a fascinating and unique creature. With its striking appearance and ancient lineage, the nautilus has captured the imagination of scientists and nature enthusiasts alike. In this blog post, we will delve into the history, facts, size, habitat, and classification of this enigmatic creature.

The nautilus is a cephalopod, a group of marine mollusks that includes octopuses and squids. Unlike its more agile relatives, the nautilus has a distinctive external shell, which acts as a protective home. This shell is a remnant of its ancestors and serves as a testament to the nautilus’ long evolutionary history. In fact, fossils of its relatives date back as far as 500 million years!

Measuring about ten inches in diameter, the nautilus is relatively small compared to other ocean-dwelling creatures. It inhabits the deep waters of the Indo-Pacific region, where it gracefully navigates using its tentacles and exquisite buoyancy control. These intelligent creatures primarily feed on small fish and crustaceans, using their well-developed eyesight to locate prey.

By exploring the history, facts, size, habitat, and classification of the nautilus, we hope to shed light on this remarkable animal and increase awareness about the diversity of life in our oceans. Remember, this is just one of the many incredible creatures that share our planet. If you’re hungry for more animal knowledge, be sure to check out our expansive collection of articles on 155+ fascinating animals. Happy reading!

History of Nautilus

The nautilus is a unique and remarkable animal that has been around for millions of years. Its history dates back to the ancient oceans of the Earth. Fossil records show that nautiluses first appeared in the seas over 500 million years ago, during a time known as the Cambrian period. They can be considered living fossils as they have barely changed in appearance since then.

During the time of the dinosaurs, around 200 million years ago, nautiluses were already swimming in the seas. They thrived during the Mesozoic era, swimming alongside giant marine reptiles. However, as the dinosaurs disappeared, many other marine creatures went extinct as well. Surprisingly, the nautilus managed to survive these mass extinctions and continued to flourish in the oceans.

Today, nautiluses can be found in the Pacific and Indian Oceans, mostly in shallow waters near coral reefs. They are known for their beautiful spiral shells, which are divided into chambers. As the nautilus grows, it builds new chambers within its shell, always living in the newest and largest chamber. Although they move quite slowly, they are skilled navigators, using jet propulsion to swim and tentacles to capture prey.

The history of the nautilus is a testament to its resilience and adaptability. It has withstood countless changes in the Earth’s climate and the rise and fall of various species. While many other creatures have gone extinct, the nautilus has persisted and continues to exist today as a living link to the prehistoric world. Its survival serves as a reminder of the incredible diversity and resilience of life in our oceans.

Importance of Nautilus

The Nautilus is a very important animal in our oceans. It is a unique creature that has been around for millions of years, and studying it helps us understand our planet’s history.

Firstly, the Nautilus is considered a living fossil because its body structure has remained almost unchanged for over 500 million years. By studying the Nautilus, scientists can learn about the ancient oceans and how life has evolved over time. This is like having a time machine that takes us back to a time long before humans even existed. It helps scientists piece together the puzzle of our planet’s past.

Secondly, the Nautilus plays an important role in the ecosystem. It helps maintain balance in the ocean’s food chain. As a scavenger, it feeds on dead organisms and waste, keeping the water clean and preventing the spread of disease. Without the Nautilus, the ocean ecosystem could become imbalanced, leading to negative consequences for other marine species, including humans who depend on the ocean for food and livelihoods.

In conclusion, the Nautilus is a fascinating and important animal. It provides valuable insights into our planet’s history and helps maintain the balance of our oceans. Protecting and studying the Nautilus is crucial for the well-being and sustainability of our marine ecosystems.

Amazing Facts About Nautilus

1. Nautilus is a type of marine animal that belongs to the cephalopod family.
2. They are considered living fossils as they have remained relatively unchanged for around 500 million years.
3. Nautilus is found in the warm waters of the Pacific and Indian Oceans, primarily in the coral reefs and coastal areas.
4. These creatures have a unique spiral-shaped shell, which provides protection and helps in regulating buoyancy.
5. The shell of a nautilus is divided into numerous chambers, each with a gas-filled fluid to control its depth in the water.
6. Nautilus is a relatively slow-moving animal, typically traveling at speeds of less than 0.5 miles per hour.
7. Their eyes, located at the ends of their tentacles, are more developed than those of other cephalopods and can detect light and movement.
8. Nautilus has around 90 short, sucker-lined tentacles that it uses for sensory purposes and to capture prey.
9. They are carnivorous animals and feed on small fish, crustaceans, and other marine organisms.
10. Nautilus has a strong beak-like mouth that they use to crush the shells of their prey.
11. These animals have an excellent sense of smell to help them locate food and find suitable breeding sites.
12. Nautilus reproduces by laying eggs, and females can lay anywhere between 10 to 60 eggs at a time.
13. The hatching of nautilus eggs can take several months, and the juveniles resemble miniaturized adults.
14. Their lifespan is relatively long, with some nautilus individuals living up to 20 years in the wild.
15. Nautilus is an important indicator species for scientists studying the health of coral reef ecosystems.

Can we keep Nautilus as our Pet?

Nautilus is an amazing creature that lives deep in the oceans. However, it is not suitable for us to keep them as pets. This is because nautiluses are not meant to live in captivity, and trying to keep them as pets would harm their species’ population. Unfortunately, nautiluses are now considered to be endangered, which means they are at a very high risk of becoming extinct.

The extinction of nautiluses is a very sad reality. Over the years, factors such as overfishing and habitat destruction have greatly affected their populations. Nautiluses are particularly vulnerable to these threats because they have a slow growth rate and reproduce at a slow pace. This means that even a small loss in population can have a significant impact on their survival.

To protect nautiluses from extinction, it is important to allow them to live in their natural habitat where they can continue to breed and support their population. It is crucial that we focus on conserving their environment and implementing strict regulations on fishing practices to prevent their further decline. While it might be tempting to have nautiluses as pets, it is our responsibility to ensure their survival for future generations to appreciate and admire.

In conclusion, nautiluses are incredible creatures that should be admired from a distance, as they are not suitable to be kept as pets. Due to their endangered status, it is essential that we take action to protect them and their natural habitat. Let us all play our part in saving these beautiful creatures from extinction.

Size of Nautilus

The Nautilus is a fascinating creature that lives deep in the ocean. It is an ancient animal that has been around for millions of years. With its unique shell and tentacles, the Nautilus is truly a remarkable creature.

The Nautilus is not very big in size. It generally measures about 20-25 centimeters in length. That’s about the size of a ruler! Its shell is what makes it stand out. It is coiled and has a beautiful, pearly color. The shell protects the Nautilus and allows it to float and move in the water. The shell can grow larger as the Nautilus gets older, but it never grows too big.

Apart from its shell, the Nautilus has tentacles that help it catch food. These tentacles are long and slender, and they have suckers at the end. With these tentacles, the Nautilus can grab hold of small fish and other prey. Although it may be small, the Nautilus is still a powerful predator in its own underwater world.

In conclusion, the Nautilus is a small creature that lives in the deep parts of the ocean. It measures around 20-25 centimeters in length and has a beautiful, coiled shell. Its tentacles help it catch its prey and survive in its underwater habitat. Despite its size, the Nautilus is truly a remarkable animal.

Habitat of Nautilus

The nautilus is a fascinating creature that lives deep in the ocean. Its habitat is very different from our homes on land. The nautilus resides in the tropical waters of the Pacific and Indian Oceans. These oceans are vast and full of life.

The nautilus can be found in the shallow waters near coral reefs, as well as in the deeper parts of the ocean. It prefers to live in quiet and calm areas, away from strong currents. The nautilus creates a protective shell for itself, which it uses to hide and rest inside. This shell acts like a home for the nautilus and helps keep it safe from predators.

The nautilus spends most of its time in the deep waters, around 600 to 1,000 feet below the surface. It is a master of staying hidden among seaweed and rocks. These areas provide the perfect camouflage for the nautilus, helping it blend in with its surroundings. This allows the nautilus to hunt for food and escape from danger without being seen.

In conclusion, the nautilus calls the deep waters of the Pacific and Indian Oceans its home. It prefers to live in calm areas near coral reefs and stays hidden in its protective shell. The nautilus is a remarkable creature that has adapted well to its unique habitat deep in the ocean.

Evolution of Nautilus

The Nautilus is a magnificent creature that has been living in our oceans for more than 500 million years! It is considered a living fossil because it has hardly changed since ancient times. The evolution of the Nautilus can be divided into three main stages.

First, let’s talk about the early ancestors of the Nautilus. These creatures lived in the ancient oceans and had long, straight shells. They had no ability to control their buoyancy, so they just floated along the currents. However, they developed intricate chambers inside their shells to help them regulate their depth in the water.

Next, we have the transitional Nautilus. These creatures started to evolve proper spiral shells, which allowed them to have more control over their movements. By adjusting the amount of gas and liquid in their chambers, they could rise or sink in the water. This adaptation made them more efficient hunters and helped them survive in different ocean depths.

Lastly, the modern Nautilus evolved. It has a beautiful spiral-shaped shell with many chambers inside. These chambers are connected by a tube called the siphuncle, which allows the Nautilus to change its buoyancy quickly. They have also developed several tentacles with sucker-like structures, which they use to catch their prey. Although they have survived through many environmental changes, the Nautilus now faces the threat of extinction due to overfishing and habitat destruction.

In summary, the Nautilus has gone through a fascinating evolution over millions of years. It started with straight-shelled ancestors, then transitioned to spiral shells with improved mobility, and finally developed a sophisticated buoyancy system and tentacles. However, the future of the Nautilus is uncertain, and it’s up to us humans to protect this incredible creature and its ancient heritage.

Classification of Nautilus

The Nautilus is a marvelous creature that belongs to the animal kingdom. It also falls under the group known as mollusks. Mollusks are animals that have soft bodies, but they are protected by a hard outer shell. The Nautilus has a spiral-shaped shell, which helps to provide it with protection and support. Inside its shell, the Nautilus has a body that is divided into different parts. It has a head, a muscular foot, and tentacles that it uses to catch its prey.

When it comes to classification, the Nautilus can be categorized further. It belongs to the phylum Mollusca, which includes other creatures like snails, clams, and squids. Within the mollusk family, the Nautilus is classified into the class Cephalopoda. Cephalopods are known for their complex behaviors and intelligence. The Nautilus shares this classification with other cephalopods like squids and octopuses. However, what makes the Nautilus unique is that it is the only cephalopod that has a hard outer shell.

In the world of classification, scientists have divided animals into smaller groups called species. The Nautilus has its own specific species called Nautilus pompilius. This species can be found in the deep waters of the Indo-Pacific region. The Nautilus belongs to a group of animals that have remained relatively unchanged for millions of years, making it a living fossil. Studying the classification of the Nautilus helps scientists better understand the evolutionary history and diversity of these incredible underwater creatures.

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Types of Nautilus

1. Chambered Nautilus: The most well-known nautilus species, it has a beautiful spiral shell divided into multiple chambers. It uses gas-filled chambers to control its buoyancy, allowing it to move up and down in the ocean.

2. Emperor Nautilus: This nautilus species is recognized for its striking shell, featuring a dark brown color with intricate golden stripes. It is found in the tropical waters of the Indo-Pacific region, where it feeds on small crustaceans and fish.

3. Tiger Nautilus: Known for its vibrant orange and black striped shell resembling a tiger’s pattern, this nautilus species inhabits the deep waters of the Andaman Sea. It feeds on carrion and scavenges for food using its tentacles.

4. Pearly Nautilus: A remarkable feature of this nautilus is its pearly shell, which has a smooth and lustrous appearance. It is equipped with up to 90 tentacles used for catching prey, such as small fish and shrimp, near the ocean floor.

5. Pacific Nautilus: Primarily found in the waters of the Pacific Ocean, this nautilus species boasts a stunning white shell with brown stripes. Its tentacles are used to locate prey, including small crustaceans, which it captures using a beak-like mouth.

6. Indian Nautilus: Inhabiting the warm waters of the Indian Ocean, this nautilus species possesses a spiral shell with an intriguing mix of brown and cream colors. It has sharp beak-like jaws to seize prey, including crabs and small squid.

7. Deep-Sea Nautilus: This nautilus species resides in the abyssal depths of the ocean, where it relies on its bioluminescent properties to attract prey. It has a transparent shell and long, filamentous tentacles that help it navigate in the darkness.

8. Smooth-head Nautilus: As the name suggests, this nautilus species has a smooth, dome-shaped head. Its shell is typically pale with brown patches and helps protect it from predators. It mainly feeds on small fish and planktonic organisms.

9. Red Nautilus: Standing out with its vibrant red shell, this nautilus species is endemic to the waters around the Philippines. It feeds on a variety of small marine creatures, including shrimp, and relies on its tentacles for capturing prey.

10. Dwarf Nautilus: This small-sized nautilus species measures only a few centimeters in length. It is predominantly found in the waters off Indonesia and the Philippines. Despite its size, it possesses all the characteristics and behaviors of its larger relatives, including hunting for food using its tentacles.

Note: Nautiluses are living fossils, and there are only a few recognized species of nautilus remaining today, making their conservation status a matter of concern.

Geographical Presence of Nautilus

The Nautilus animal is found in the coastal regions of the Pacific and Indian Oceans. These animals live in shallow waters close to the shore and are mainly found near countries like Australia, Indonesia, the Philippines, and Papua New Guinea. They like to inhabit coral reefs, seagrass beds, and rocky areas where they can find food and shelter. The Nautilus is a beautiful creature with a hard shell that helps protect it from predators.

However, Nautilus is not found in all parts of the world. They are not commonly found in colder regions like the Arctic and Antarctic oceans. The temperature in these areas is too cold for the Nautilus to survive. Additionally, they are not found in areas with strong ocean currents, as they prefer calmer and more peaceful waters. These regions include the open ocean, where the powerful currents can sweep the Nautilus away from their desired habitat.

To summarize, Nautilus is found in the coastal regions of the Pacific and Indian Oceans, close to countries like Australia and Indonesia. They live in warm waters and prefer areas with coral reefs and seagrass beds. However, they are not found in colder regions like the Arctic and Antarctic oceans, nor in areas with strong ocean currents. The Nautilus is a fascinating creature that has adapted to a specific habitat to thrive and survive.

Scientific Name of Nautilus

The scientific name for the nautilus animal is Nautilus pompilius. It belongs to the cephalopod family and is considered a living fossil as it has been on Earth for over 500 million years. The nautilus is a marine creature that lives in the deep ocean and is related to squids, octopuses, and cuttlefish.

The nautilus has a unique shell that consists of multiple chambers, which are connected by a tube called a siphuncle. This shell helps protect the nautilus and provides buoyancy so it can float in the water. The animal itself is usually about the size of a football and has a soft body protected by its hard shell.

Nautiluses are known for their slow movements and nocturnal habits. They have numerous tentacles with suction cups that they use to capture prey, mainly small fish and crustaceans. Despite their ancient lineage, nautiluses are relatively simple animals compared to their cephalopod relatives. They do not have the ability to change color or squirt ink like some other cephalopods.

In conclusion, the scientific name for the nautilus animal is Nautilus pompilius. It is a living fossil that has been around for millions of years and belongs to the cephalopod family. The nautilus has a unique shell, slow movements, and captures its prey using its tentacles. It is an interesting creature that continues to fascinate scientists with its primitive features.

Diet of Nautilus

The diet of the Nautilus animal is quite interesting. These creatures are known as cephalopods, which means they have tentacles and a soft body. Unlike other cephalopods, such as squids or octopuses, the Nautilus has a hard, spiral-shaped shell that protects its body.

Nautiluses are carnivorous, which means they eat other animals. They mainly feast on small creatures like crabs, shrimp, and fish that live near the ocean floor. Using their tentacles, the Nautilus captures its prey and brings it towards its mouth. Their bite isn’t very strong, so they rely on their sharp beak to cut up their food into smaller pieces.

To find food, the Nautilus uses its exceptional sense of smell. They have a very keen nose and can pick up scents from miles away. This helps them locate their next meal even in the dark depths of the ocean. Interestingly, Nautiluses also have a unique hunting strategy called ambush predation. They wait patiently in one spot, hidden among rocks or coral, and strike quickly when unsuspecting prey swims by.

In summary, the Nautilus animal eats a meat-based diet, mainly consuming small marine creatures found near the ocean floor. They use their tentacles to grab their prey and rely on their sharp beak to break it into smaller pieces. With their excellent sense of smell and ambush hunting technique, Nautiluses have adapted well to their marine environment.

Locomotion of Nautilus

Nautilus animals have a unique way of moving through the water. They have a special structure called a “jet propulsion system” that helps them swim. They move by sucking water into their shells and then forcefully pushing it out. This creates a jet of water that propels them forward.

To move up and down in the water, nautilus animals use something called “buoyancy.” They have chambers in their shells that they can fill with air or water. By adjusting the amount of air and water in these chambers, they can control their position in the water. When they want to go up, they fill the chambers with air, making them lighter and helping them float. And when they want to go down, they fill the chambers with water, making them heavier and helping them sink.

Overall, nautilus animals have a clever way of getting around in the ocean. Their jet propulsion system and the ability to control their buoyancy allow them to swim up, down, and forward with ease. It’s fascinating how nature has equipped them with these special powers to navigate their underwater world.

Social and Sexual Behaviour of Nautilus

Nautilus is an amazing creature that has interesting social and sexual behavior. They live deep in the ocean and they are not very social animals. They typically lead a solitary life, meaning they prefer to be alone rather than being in a group. They spend most of their time in their beautiful spiral-shaped shell.

When it comes to mating, nautilus have a unique way of finding a partner. Unlike many other animals, they do not have complex rituals or courtship displays. Instead, the males release a special substance into the water to attract females. This substance contains certain chemicals that let the females know they are ready to mate. Once the female finds the male, they come together and their bodies touch and spin around each other. The male then transfers sperm packets to the female’s body, known as the “eggs”. These eggs later develop into baby nautilus.

After mating, the female nautilus lays eggs and attaches them to rocks or other surfaces in the ocean. These eggs are protected by a tough, leathery casing. The female takes good care of the eggs until they hatch. Once the baby nautilus are born, they are able to swim and survive on their own. Nautilus may not be very social, but their unique way of finding a mate and taking care of their young is truly fascinating.

Reproduction and Lifecycle of Nautilus

The Nautilus is a fascinating creature that goes through a unique and interesting life cycle. They reproduce by laying eggs. The female Nautilus produces a cluster of eggs, which she carefully attaches to the underside of her shell. The male Nautilus then releases a cloud of sperm, which fertilizes the eggs. After the fertilization, the female Nautilus takes care of the eggs, providing them with protection until they hatch.

Once the eggs hatch, tiny Nautilus called “juveniles” emerge from them. At this stage, they look like miniature versions of their parents. The juveniles begin their life by swimming freely in the water, using their numerous tentacles to catch prey such as small fish and shrimp. As they grow older, the Nautilus shells develop more chambers. These chambers allow Nautiluses to control their buoyancy and move through the water. Inside these chambers, gas-filled compartments called “siphuncle” help them float or sink to different depths of the ocean.

As the Nautilus continues to grow, it gradually adds more and larger chambers to its shell. This process continues throughout its lifetime. Each chamber is occupied by the Nautilus one after the other as it gets bigger. The outermost chamber is the largest and serves as its living space. The Nautilus can retreat into the shell when it detects any potential danger. This remarkable creature can live for up to 20 years in the wild, growing and adding more chambers to its beautiful spiral-shaped shell.

In summary, the life cycle of a Nautilus begins with the female laying eggs and attaching them to the underside of her shell. After hatching, the juveniles swim freely in the water, hunting for food. As they grow older, their shells keep adding more chambers, and the Nautilus can live for up to 20 years. Nautiluses are truly unique creatures that go through an incredible journey during their lifetime in the ocean.

Threats to Nautilus

The nautilus animal faces several threats that could impact its survival. One threat is overfishing. Many people catch nautiluses for their shells, which are considered valuable and are often used to make jewelry or decorations. This excessive fishing can deplete their population and disrupt the balance in their ecosystem.

Another threat is pollution. Human activities, such as dumping garbage and chemicals into the ocean, can contaminate the water where nautiluses live. This pollution can harm not only the nautiluses but also the plants and other animals that they rely on for food. It can also make their habitats uninhabitable and lead to the decline or even extinction of these unique creatures.

Climate change is also a major threat to nautiluses. Rising temperatures and changes in ocean currents can impact their ability to find food and suitable environments. Additionally, the increasing acidity of the ocean due to climate change can harm their fragile shells, making it harder for them to survive and reproduce.

To protect the nautilus animal, it is crucial to address these threats. Governments and organizations can enforce fishing restrictions to prevent overfishing of nautiluses. They can also implement strict regulations to reduce pollution in our oceans and promote recycling and sustainable practices. Finally, actions to combat climate change, such as reducing greenhouse gas emissions, can help create a safer environment for the nautilus animal and other marine species. By taking these steps, we can ensure the survival of these fascinating creatures for future generations to enjoy.

Population of Nautilus

The population of the Nautilus animal is unknown, as they live deep in the ocean where it is difficult to study them. However, scientists believe that there are not many Nautilus left in the world. Some estimate that there may be only a few thousand individuals remaining.

It is sad to say that the Nautilus animal is at risk of becoming extinct. This means that there might not be any of them left in the world. The reasons for their decline are not fully understood, but one of the main causes is habitat destruction. Pollution and climate change also contribute to the endangerment of these amazing creatures.

If the Nautilus animal goes extinct, it would be a significant loss to our planet. They have been around for millions of years, even before the dinosaurs! The extinction of Nautilus would be a tragedy and a reminder of how important it is to protect our oceans and the creatures that call them home.

In conclusion, the population of the Nautilus animal is uncertain, but it is believed to be low. Sadly, they are at risk of extinction due to habitat destruction, pollution, and climate change. Losing these ancient animals would be a great loss for our planet.

Conclusion

In summary, Nautilus is a fascinating creature known for its unique features and long history on Earth. These animals are often referred to as “living fossils” because they have remained relatively unchanged for millions of years. Despite being associated with the ocean, Nautilus actually resides in the deep sea and can be found in the warm waters of the Pacific and Indian Oceans.

Nautiluses are known for their distinct external shells, which provide them with protection and buoyancy. These shells consist of numerous chambers that the animal can adjust the amount of gas inside to control its depth in the water. This adaptive feature allows nautiluses to move up and down the ocean, making them skilled navigators of the deep.

Classification-wise, Nautilus belongs to the cephalopod group, which also includes squids and octopuses. Although they share some characteristics with these cephalopods, nautiluses have a more primitive anatomy, with their tentacles having a small number of suckers compared to their relatives.

In conclusion, the nautilus is a unique and ancient creature that has managed to survive and thrive in the depths of the ocean. With its impressive shell and navigational abilities, it continues to capture the curiosity of scientists and enthusiasts alike. By studying these animals, we can gain valuable insights into the history and evolution of life on our planet.

Frequently Asked Questions about Nautilus (FAQ’s)

Q: What is a Nautilus?
A: Nautilus is a marine animal that belongs to the mollusk class Cephalopoda.

Q: What is the scientific name for Nautilus?
A: The scientific name for Nautilus is Nautilidae.

Q: How big can Nautiluses grow?
A: Nautiluses can grow up to 8 to 10 inches in diameter.

Q: Where can Nautiluses be found?
A: Nautiluses are found in the deep Pacific and Indian Oceans near the coasts of Australia, New Zealand, Fiji, and Japan.

Q: What is the lifespan of a Nautilus?
A: The lifespan of a Nautilus is around 20 years in the wild.

Q: Do Nautiluses have eyes?
A: Yes, Nautiluses have eyes, but their vision is rather poor.

Q: Are Nautiluses endangered?
A: Yes, Nautiluses are considered to be a vulnerable species and their populations are declining.

Q: How do Nautiluses swim?
A: Nautiluses swim by using jet propulsion by forcefully pushing water out of their shells.

Q: Can Nautiluses change their color or texture?
A: No, Nautiluses cannot change their color or texture like other cephalopods such as octopuses or squids.

Q: What do Nautiluses eat?
A: Nautiluses are carnivorous and primarily feed on small fish, shrimp, and crabs.

Q: Do Nautiluses have a shell?
A: Yes, Nautiluses have a spiral-shaped shell that protects their soft body.

Q: How many chambers are there in a Nautilus shell?
A: Nautilus shells have approximately 30 chambers in total.

Q: Are Nautiluses social animals?
A: No, Nautiluses are solitary animals and prefer to live and hunt alone.

Q: Can Nautiluses retract into their shells?
A: No, Nautiluses cannot fully retract into their shells like some other mollusks.

Q: Can Nautiluses produce light?
A: Yes, Nautiluses have bioluminescent properties and can produce a glowing light.

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